Our project design uses an LM25143-Q1 as the primary power supply, providing two 5V outputs for the secondary PMIC.FB1 and FB2 are connected to AGND and operated in DCM mode. The soft-start time is set to 3ms. SW1 has a power inductor of 1uH with a saturation current of 14.4A, while SW2 has a power inductor of 0.47uH with a saturation current of 55A.When connecting VCCX to VOUT2, the output of SW1 is 0.6V and SW2 is 3.1V, which does not match the expected design of two 5V outputs.When connecting VCCX to an external 5V voltage, SW1 and SW2 can stably output 5V. However, according to the recommended connection method in the datasheet, why is it unable to output two 5V outputs when VCCX is connected to VOUT2?
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